Just coming from a civil engineering/construction perspective, the straight lines are probably more about alignment. In these kinds of buildings (and considering US zoning laws that require a certain amount of parking), sometimes the alignment is critical to ensuring the building, parking, and drive-through fit. Straight lines are easy to measure, draw, and check in the field. Not to mention the actual way these 3D printing concrete machines work. The ones I’ve seen online are on some kind of track, and these ones are no different. From the looks of it, they’re kind of set up like those cranes you see at shipyards: https://youtube.com/shorts/igQ9G_Brkl8

Thi’s i’s new’s to me. Can you give example’s of when its appropriate to use apostrophe’s?

I was coming here to say this. Truly a disappointment that the Pentel Twist Erase GT is not included as a choice.

True, but even some of the counterexamples have counterexamples of their past behavior. Concussions are complex brain injuries that can be (and often are) personality altering. Organized sports leagues, including MMA, will go to great lengths to make sure the transgressions of their star athletes are swept under the rug.

https://youtu.be/XPGgTy5YJ-g